Episode

1667: "Gold’s Color Comes from Relativity"

Podcast: Interesting Things with JC
Published: May 29, 2026
Duration seconds: 155
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Canonical source: https://jimconnors.net/interesting-things-with-jc/2026/5/29/1667-golds-color-comes-from-relativity
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Summary

Interesting Things with JC #1667: "Gold’s Color Comes from Relativity" – Gold atoms absorb blue and violet light because fast-moving electrons near the heavy nucleus shift energy levels, leaving reds, yellows, and greens to reflect back as the familiar metallic color.